#pragma once

#include <iostream>
#include <unistd.h>
using namespace std;

typedef void(*work_t)(int);
typedef void(*task_t)(int,pid_t);

void PrintLog(int fd,pid_t pid)
{
    cout << "sub process: " << pid << ", fd: " << fd << ", task is : Printf Log task\n" << endl;
}
void ReloadConf(int fd,pid_t pid)
{
    cout << "sub process: " << pid << ", fd: " << fd << ", task is : Reload Conf task\n" << endl;
}
void ConnectMysql(int fd,pid_t pid)
{
    cout << "sub process: " << pid << ", fd: " << fd << ", task is : Connect Mysql task\n" << endl;
}
task_t tasks[3] = {PrintLog,ReloadConf,ConnectMysql};

uint32_t NextTask()
{
    return rand() % 3;
}

void worker(int fd)
{
    //从0中读取任务即可
    while(true)
    {
        uint32_t command_code = 0;
        ssize_t n = read(0,&command_code,sizeof(command_code));
        if(n == sizeof(command_code))
        {
            if(command_code >= 3) continue;
            tasks[command_code](fd,getpid());
        }
        else if(n == 0)
        {
            cout << "sub process: " << getpid() << " quit now..." << endl;
            break;
        }
    }
}
